2022 NAICS national industry in sector 31-33 Manufacturing
332993 Ammunition (except Small Arms) Manufacturing
NAICS 332993 is the US industry code for ammunition (except small arms) manufacturing. This U.S.
- Code
- 332993 (2022 NAICS)
- Title
- Ammunition (except Small Arms) Manufacturing
- Part of
- All Other Fabricated Metal Product Manufacturing
- SBA small business limit
- Up to 1,500 employees
- Closest UK SIC
- 20200, 25210, 25290 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in manufacturing ammunition (except small arms). Examples of products made by these establishments are bombs, depth charges, rockets (except guided missiles), grenades, mines, and torpedoes.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Manufacturing small arms ammunition are classified in U.S. Industry 332992, Small Arms Ammunition Manufacturing.
- Manufacturing blasting and detonating caps and safety fuses are classified in Industry 325920, Explosives Manufacturing.
- Manufacturing fireworks are classified in U.S. Industry 325998, All Other Miscellaneous Chemical Product and Preparation Manufacturing.
- Manufacturing guided missiles are classified in U.S. Industry 336414, Guided Missile and Space Vehicle Manufacturing.
Activities listed under 332993
The Census index assigns these 31 activities to this code. If your business matches one, this is your code.
- Adapters, bombcluster, manufacturing
- Ammunition (i.e., more than 30 mm., more than 1.18 inch) manufacturing
- Ammunition loading and assembling plants
- Arming and fusing devices, missile, manufacturing
- Artillery ammunition (i.e., more than 30 mm., more than 1.18 inch) manufacturing
- Bag loading plants, ammunition, manufacturing
- Bomb loading and assembling plants
- Bombcluster adapters manufacturing
- Bombs manufacturing
- Boosters and bursters, artillery, manufacturing
- Canisters, ammunition, manufacturing
- Caps, bomb, manufacturing
- Depth charges manufacturing
- Detonators, ammunition (i.e., more than 30 mm., more than 1.18 inch), manufacturing
- Fin assemblies, mortar, manufacturing
- Fin assemblies, torpedo and bomb, manufacturing
- Fuses ammunition (i.e., more than 30 mm., more than 1.18 inch) manufacturing
- Grenades, hand or projectile, manufacturing
- Igniters, ammunition tracer (i.e., more than 30 mm., more than 1.18 inch), manufacturing
- Jet propulsion projectiles (except guided missiles) manufacturing
- Loading and assembling bombs
- Mines, ammunition, manufacturing
- Missile warheads manufacturing
- Mortar shells manufacturing
- Primers (i.e., more than 30 mm., more than 1.18 inch), ammunition, manufacturing
- Projectiles (except guided missile), jet propulsion, manufacturing
- Rockets, ammunition (except guided missiles, pyrotechnic), manufacturing
- Shell loading and assembly plants
- Shells, artillery, manufacturing
- Torpedoes manufacturing
- Tracer igniters, ammunition (i.e., more than 30 mm., more than 1.18 inch), manufacturing
SBA size standard for 332993
To count as a small business for SBA loans and federal contracts under NAICS 332993, your business (including affiliates) must not exceed 1,500 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2029, 2520), so treat them as a starting point and check the definition.
- 20200Manufacture of pesticides and other agrochemical productsUK SIC
- 25210Manufacture of central heating radiators and boilersUK SIC
- 25290Manufacture of other tanks, reservoirs and containers of metalUK SIC
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.